1-(1H-pyrazol-1-yl)ethanone

Modify Date: 2025-08-22 11:48:06

1-(1H-pyrazol-1-yl)ethanone Structure
1-(1H-pyrazol-1-yl)ethanone structure
 Common Name 1-(1H-pyrazol-1-yl)ethanone
CAS Number 10199-64-1 Molecular Weight 110.11400
Density 1.14g/cm3 Boiling Point 197.9ºC at 760mmHg
Molecular Formula C5H6N2O Melting Point N/A
MSDS N/A Flash Point 73.5ºC

 Names

Name 1-pyrazol-1-ylethanone
Synonym More Synonyms

 Chemical & Physical Properties

Density 1.14g/cm3
Boiling Point 197.9ºC at 760mmHg
Molecular Formula C5H6N2O
Molecular Weight 110.11400
Flash Point 73.5ºC
Exact Mass 110.04800
PSA 34.89000
LogP 0.54320
Vapour Pressure 0.37mmHg at 25°C
Index of Refraction 1.552

 Synthetic Route

Acetyl chloride structure

Acetyl chloride

CAS#:75-36-5

1-(Trimethylsilyl)-1H-pyrazole structure

1-(Trimethylsil...

CAS#:18156-75-7

~93%

1-(1H-pyrazol-1-yl)ethanone Structure

1-(1H-pyrazol-1...

CAS#:10199-64-1

Literature: Gasparini, J. P.; Gassend, R.; Maire, J. C.; Elguero, J. Journal of Organometallic Chemistry, 1980 , vol. 188, # 2 p. 141 - 150
Pyrazole structure

Pyrazole

CAS#:288-13-1

Acetyl chloride structure

Acetyl chloride

CAS#:75-36-5

~%

1-(1H-pyrazol-1-yl)ethanone Structure

1-(1H-pyrazol-1...

CAS#:10199-64-1

Literature: Chemische Berichte, , vol. 28, p. 688 Journal fuer Praktische Chemie (Leipzig), , vol. <2> 53, p. 127
Acetyl chloride structure

Acetyl chloride

CAS#:75-36-5

~%

1-(1H-pyrazol-1-yl)ethanone Structure

1-(1H-pyrazol-1...

CAS#:10199-64-1

Literature: Gazzetta Chimica Italiana, , vol. 61, p. 458,462

 Synonyms

1-Acetyl-1H-pyrazole
1H-Pyrazole,1-acetyl
1-Acetyl-1H-pyrazol
1-acetyl-pyrazole
acetyl pyrazole
1-Pyrazol-1-yl-ethanone
N-acetylpyrazole
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